More specifically one for a Vortech 5.3 liter V8 in the 2008 GMC sierra. I want to keep my truck completely stock looking and just be able to scare the shit out of people with a monster of an engine! However with only 290HP and 350 ft/lb of torque I think it needs some encuragement. Also do you know if you can put a supercharger on a stock vortech V8? What else do you need to supercharge an engine? Do you need to do an ECU tune?